Anomalous quantum confinement of the longitudinal optical phonon mode in PbSe quantum dots

We have investigated the diameter dependence of the Raman spectra of lead selenide nanocrystals. The first-order Raman peak at about 136 cm super(-1) and its second-order overtone at twice this wavenumber move up in energy with decreasing nanocrystal diameter. This anomalous behavior is interpreted...

Ausführliche Beschreibung

Bibliographische Detailangaben

Veröffentlicht in:	Physical review. B, Condensed matter and materials physics Condensed matter and materials physics, 2013-09, Vol.88 (11), p.115313-1 - 115313-7, Article 115313
Hauptverfasser:	Habinshuti, J., Kilian, O., Cristini-Robbe, O., Sashchiuk, A., Addad, A., Turrell, S., Lifshitz, E., Grandidier, B., Wirtz, L.
Format:	Artikel
Sprache:	eng
Schlagworte:	Chemical Sciences Condensed matter Dispersions Lead selenides Nanocrystals or physical chemistry Phonons Quantum confinement Qunatum dots Raman spectra Slabs Theoretical and
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!